Countersink bits create a conical recess so screw heads sit flush with or below the surface. Combined countersink and pilot drill bits save time when installing screws in timber and sheet metal.
What are countersink bits... Read More
Countersink bits create a conical recess so screw heads sit flush with or below the surface. Combined countersink and pilot drill bits save time when installing screws in timber and sheet metal.
What are countersink bits used for?
Countersink bits are used to create a conical recess in the surface of a material so that a screw head sits flush or below the surface. This is especially useful in:
Woodworking and cabinetry
Joinery and furniture assembly
Metal and plastic fastening where flush finishes are needed
They’re commonly used in combination with pilot hole drilling to prevent splitting and improve the appearance of fastened surfaces.
What types of countersink bits are available?
Single countersink bits – cut only the chamfer for screw heads
Combination bits – drill the pilot hole and countersink in one pass
Adjustable depth stop bits – allow for repeatable, uniform countersinks
Materials:
High-speed steel (HSS) – general use
Carbon steel – for softwoods and plastics
Carbide-tipped – for hardwoods, laminates, or metal
Titanium-coated – for longer life and heat resistance
How do I choose the correct countersink bit?
Consider:
Screw size – match the bit angle (typically 82° or 90°) and hole size to your screws
Material being drilled – use sharper, harder bits (like carbide or titanium) for harder materials
Drill type compatibility – check shank size (round or hex) to suit your chuck
Finish quality – combination bits reduce steps, while adjustable types provide cleaner, more accurate results for visible joints
Carbon Steel Countersink – Countersink for Wood. A countersink is a conical hole cut into a manufactured object. The same term is used for the cut...
View full detailsCarbon Steel Countersink – Countersink for Wood. A countersink is a conical hole cut into a manufactured object. The same term is used for the cut...
View full detailsCarbon Steel Countersink – Countersink for Wood. A countersink is a conical hole cut into a manufactured object. The same term is used for the cut...
View full details5Pc Carbon Steel Countersink Set Included: 1/4" X 60mm Bit Holder Sizes: 8, 12, 16 & 19mm
Carbon Steel Countersink – Countersink for Wood. A countersink is a conical hole cut into a manufactured object. The same term is used for the cut...
View full detailsHSS 90º 10mm Countersink Bit The five flute rose pattern design has been a principle countersink design for over 100 years. The odd number of fl...
View full detailsOver the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full detailsOver the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full details6Pc HSS Countersink Bit Set 6Pc 6.3 -20.5mm HSS countersink set in metal cassette Range of application For ferrous and non-ferrous metals, s...
View full detailsFESTOOL. Our passion for high-quality power tools has continued for more than 90 years. We share this fascination with our users and fans. Our p...
View full detailsFESTOOL. Our passion for high-quality power tools has continued for more than 90 years. We share this fascination with our users and fans. Our p...
View full detailsHSS 16mm (5/8") 90º Countersink Bit The five flute rose pattern design has been a principle countersink design for over 100 years. The odd number...
View full detailsHSS 90º 6mm 5 Flute Countersink Bit The five flute rose pattern design has been a principle countersink design for over 100 years. The odd number...
View full detailsOver the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full detailsHSS 90º Countersink Drill Bit Size: 90º 20,5mm Profile: C Shape
12mm HSS Countersink on Plastic Handle
Countersink, Replacement Depth Stoppers - OD = 28,5mm OD Outside Diameter + 28,5mm
Over the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full detailsHSS 90º Countersink Drill Bit Size: 90º 6,3mm Profile: C Shape
Over the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full detailsOver the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full detailsOver the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full detailsOver the past decades, Betop has always offered high quality tool solutions to our customers all over the world. Starting with professional wood c...
View full details16mm HSS Countersink Drill Bit
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